Attorneys for Republicans and Doug las County will argue to the Colorado Supreme Court today that the county should not have been split when congressional boundaries were redrawn.

GOP attorney Richard Westfall said Larimer County is 10 times more agricultural than Douglas County and that Larimer should remain in the 4th Congressional District with Eastern Plains counties.

“It’s a complete wholesale disregard of the evidence,” Westfall said Wednesday.

The Colorado Supreme Court is hearing oral arguments in the case at 11:15 a.m. in the Old Supreme Court Chambers at the state Capitol.

This hearing is over redistricting, which involves congressional lines. It’s separate from reapportionment, or legislative boundaries, a fight that also will be reviewed by the Supreme Court.

In written arguments to the court, Republicans argued that “this extraordinary disruption to Colorado’s congressional map was driven by (the Democrats’) desire to create a substantially new ‘competitive’ ” 6th Congressional District.

After the legislature failed to draw new congressional boundaries, lawsuits were filed in Denver District Court and a trial was held in October.

In November, Denver District Judge Richard Hyatt selected a map submitted by Democrats.

The decision took the rural portion of Douglas County out of the 6th District and put it in the 4th District. Larimer is shuttled from the 4th into the 2nd District with Boulder.

And the new 6th District, which goes from being GOP-safe to competitive, now includes all of Aurora.

Republicans and Douglas County have asked the Supreme Court to overturn Hyatt’s ruling. Democrats and the city of Aurora have asked the court to let the map stand.

Aurora city leaders are thrilled Hyatt chose a map that unites Aurora, which has been split among congressional districts.

“Aurora is itself an important community of interest in the metropolitan area,” attorneys for Aurora argued in their brief. “By contrast, the trial record contains little evidence that Douglas County government has expanded its provision of services or its role as an economic development engine in the past 10 years.”

Democrats, in their brief, pointed to an earlier court ruling that concluded “perfection is not obtainable” and to Hyatt’s own words.

Democrats Ed Perlmutter and Jared Polis have joined their Republican congressional colleagues in backing legislation that would allow the Bureau of Land Management to relocate it headquarters to the West, and possibly to Colorado.

Two conservative taxpayer advocacy groups filed suit Wednesday against new Denver campaign finance disclosure rules for issue advocacy committees that they say will violate the privacy rights of their donors.